EP 0242938 A2 19871028 - Stabilized chelating agents for removing hydrogen sulfide.
Title (en)
Stabilized chelating agents for removing hydrogen sulfide.
Title (de)
Stabilisierte Chelatbildner zur Entfernung von Schwefelwasserstoff.
Title (fr)
Agents de chélatation stabilisés pour éliminer le sulfure d'hydrogène.
Publication
Application
Priority
US 83196986 A 19860224
Abstract (en)
Soluble chemical compounds having a high affinity for hydroxyl radicals are effective stabilizers for chelating agents used in the hydrogen sulfide removal process. The stabilizers include water-soluble aromatic compounds, bromide ions, iodide ions, cyanides, nitrites, amino acids, sugars, ascorbates, alcohols, polyols, aliphatic aldehydes, soluble organic compounds having unsaturated carbon-carbon bonds, dimethyl sulfoxide, organic disulfides, alkyl amines, and formates. The aromatic compounds have the additional benefit of combining with hydroxyl radicals to form chelating agents.
IPC 1-7
IPC 8 full level
B01D 53/14 (2006.01); B01D 53/52 (2006.01); B01D 53/77 (2006.01); C01B 17/05 (2006.01); C10K 1/10 (2006.01)
CPC (source: EP US)
B01D 53/52 (2013.01 - EP US); C01B 17/05 (2013.01 - EP US); C10K 1/10 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0242938 A2 19871028; EP 0242938 A3 19890308; EP 0242938 B1 19931118; AU 599956 B2 19900802; AU 6884987 A 19870827; CA 1295986 C 19920218; CN 1008070 B 19900523; CN 87100802 A 19871028; DE 3788152 D1 19931223; DE 3788152 T2 19940310; DK 94287 A 19870825; DK 94287 D0 19870224; JP S62197127 A 19870831; MX 165860 B 19921208; NO 166759 B 19910527; NO 166759 C 19910904; NO 870713 D0 19870223; NO 870713 L 19870825; NZ 219322 A 19911025; PH 22742 A 19881128; US 4891205 A 19900102
DOCDB simple family (application)
EP 87300642 A 19870126; AU 6884987 A 19870216; CA 528130 A 19870126; CN 87100802 A 19870223; DE 3788152 T 19870126; DK 94287 A 19870224; JP 3813387 A 19870223; MX 533387 A 19870223; NO 870713 A 19870223; NZ 21932287 A 19870218; PH 34899 A 19870224; US 83196986 A 19860224